High Availability & Disaster Recovery: Securing Critical Applications on AWSSite Relability Engineering
The client, a global enterprise operating mission-critical applications on AWS, required a robust solution to ensure high availability and disaster recovery.
Their primary concern was minimizing downtime during regional outages and ensuring seamless data replication and integrity across multiple AWS regions. With business continuity as a top priority, they sought a solution that would guarantee uninterrupted operations and meet their stringent uptime requirements.
By leveraging AWS services, the client now enjoys reliable performance with 99.99% uptime, providing confidence in the resilience of their infrastructure.
Challenge
A client needed to guarantee high availability and disaster recovery for their mission-critical applications running on AWS. The applications required minimal downtime and resilience to regional outages, while ensuring data integrity and business continuity.
Solution
A multi-region architecture was designed and implemented using AWS services to meet these high-availability and disaster recovery requirements:
Route 53 for DNS Failover: Configured AWS Route 53 to manage traffic across multiple regions, ensuring seamless failover to secondary regions in the event of a primary region outage.
RDS for Database Replication: Implemented Amazon RDS with cross-region replication to provide continuous data synchronization, ensuring that a standby database was always available and up-to-date in another region.
S3 for Backup Storage: Leveraged Amazon S3 to store backups of critical data, offering a cost-effective and secure solution for long-term storage and retrieval during disaster recovery scenarios.
CloudFormation for Automated Failover: Developed AWS CloudFormation scripts to automate the failover process, reducing the time required to switch between regions and ensuring a smooth transition with minimal downtime.
Results
Achieved 99.99% uptime, exceeding the client’s availability requirements and providing confidence in the platform’s reliability.
Ensured business continuity during regional outages by leveraging the automated failover mechanism, allowing the client to maintain uninterrupted operations even in the face of infrastructure issues.